added dechunker back for backwards compatibility

This commit is contained in:
Fabian Vogelsteller 2017-03-03 17:02:11 +01:00
parent 4a090ff371
commit 55e0832ac8
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9 changed files with 100 additions and 24 deletions

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@ -21,6 +21,8 @@ This way developers can watch for additional events like on "receipt" or "transa
web3.eth.sendTransaction({from: '0x123...', data: '0x432...'})
.once('transactionHash', function(hash){ ... })
.once('receipt', function(receipt){ ... })
.on('confirmation', function(confNumber, receipt){ ... })
.on('error', function(error){ ... })
.then(function(receipt){
// will be fired once the receipt its mined
});

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@ -32,15 +32,13 @@ First you need to get web3.js into your project. This can be done using the foll
- pure js: link the ``dist/web3.min.js``
After that you need to create a web3 instance and set a provider.
If you are in a ethereum supported Browser like Mist or MetaMask check if the ``web3`` object is available:
Ethereum supported Browsers like Mist or MetaMask will have a ``ethereumProvider`` available, web3.js is setting this one to ``Web3.givenProvider``.
If this property is ``null`` you need to connect to a remote/local node.
.. code-block:: javascript
if (typeof web3 !== 'undefined') {
web3 = new Web3(web3.currentProvider);
} else {
// set the provider you want from Web3.providers
web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
}
// in node.js use: var Web3 = require('web3');
var web3 = new Web3(Web3.givenProvider || new Web3.providers.WebsocketProvider("ws://localhost:8546"));
Thats it! now you can use the ``web3`` object.

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@ -14,13 +14,13 @@ For more see the `Swarm Docs <http://swarm-guide.readthedocs.io/en/latest/>`_.
var Bzz = require('web3-bzz');
// "Bzz.providers.givenProvider" will be set if in an Ethereum supported browser.
var bzz = new Bzz(Bzz.providers.givenProvider || new Bzz.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var bzz = new Bzz(Bzz.givenProvider || new Bzz.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// or using the web3 umbrella package
var Web3 = require('web3');
var web3 = new Web3(Web3.providers.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var web3 = new Web3(Web3.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// -> web3.bzz

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@ -10,13 +10,13 @@ The ``web3-eth`` package allows you to interact with an Ethereum blockchain and
var Eth = require('web3-eth');
// "Eth.providers.givenProvider" will be set if in an Ethereum supported browser.
var eth = new Eth(Eth.providers.givenProvider || new Eth.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var eth = new Eth(Eth.givenProvider || new Eth.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// or using the web3 umbrella package
var Web3 = require('web3');
var web3 = new Web3(Web3.providers.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var web3 = new Web3(Web3.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// -> web3.eth

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@ -14,13 +14,13 @@ For more see `Whisper Overview <https://github.com/ethereum/wiki/wiki/Whisper-O
var Shh = require('web3-shh');
// "Shh.providers.givenProvider" will be set if in an Ethereum supported browser.
var shh = new Shh(Shh.providers.givenProvider || new Shh.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var shh = new Shh(Shh.givenProvider || new Shh.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// or using the web3 umbrella package
var Web3 = require('web3');
var web3 = new Web3(Web3.providers.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var web3 = new Web3(Web3.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// -> web3.shh

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@ -9,9 +9,10 @@ The web3.js object is a umbrella package to house all ethereum related modules.
var Web3 = require('web3');
// "Web3.providers.givenProvider" will be set if in an Ethereum supported browser.
var web3 = new Web3(Web3.providers.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
var web3 = new Web3(Web3.givenProvider || new Web3.providers.WebsocketProvider('ws://some.local-or-remote.node:8546'));
// -> web3.eth
// -> web3.personal
// -> web3.shh
// -> web3.bzz
// -> web3.utils

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@ -7,6 +7,7 @@
"main": "src/index.js",
"dependencies": {
"web3-core-helpers": "^1.0.0",
"web3-providers-ipc": "^1.0.0",
"underscore": "^1.8.3",
"oboe": "^2.1.3",
"xmlhttprequest": "*",

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@ -30,7 +30,7 @@ var BatchManager = require('./batch');
/**
/**
* It's responsible for passing messages to providers
* It's also responsible for polling the ethereum node for incoming messages
* Default poll timeout is 1 second
@ -46,18 +46,27 @@ var RequestManager = function RequestManager(provider) {
// ADD GIVEN PROVIDER
/* jshint ignore:start */
var IpcProvider = require('web3-providers-ipc');
var global = Function('return this')();
if(typeof global.ethereumProvider !== 'undefined') {
RequestManager.givenProvider = global.ethereumProvider;
} else if(typeof global.web3 !== 'undefined' && global.web3.currentProvider) {
if(global.web3.currentProvider.sendAsync) {
global.web3.currentProvider.send = global.web3.currentProvider.sendAsync;
delete global.web3.currentProvider.sendAsync;
// if connection object is available, create new provider
if (global.web3.currentProvider.connection) {
RequestManager.givenProvider = new IpcProvider('', global.web3.currentProvider.connection);
// otherwise subscription aren't available
} else {
if(global.web3.currentProvider.sendAsync) {
global.web3.currentProvider.send = global.web3.currentProvider.sendAsync;
delete global.web3.currentProvider.sendAsync;
}
RequestManager.givenProvider = global.web3.currentProvider;
}
RequestManager.givenProvider = global.web3.currentProvider;
}
/* jshint ignore:end */

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@ -37,10 +37,8 @@ var IpcProvider = function (path, net) {
this.addDefaultEvents();
// LISTEN FOR CONNECTION RESPONSES
oboe(this.connection)
.done(function(result) {
var callback = function(result) {
/*jshint maxcomplexity: 6 */
var id = null;
@ -62,12 +60,22 @@ var IpcProvider = function (path, net) {
callback(null, result);
});
// fire the callback
// fire the callback
} else if(_this.responseCallbacks[id]) {
_this.responseCallbacks[id](null, result);
delete _this.responseCallbacks[id];
}
});
};
// use oboe.js for Sockets
if (net.constructor.name === 'Socket') {
oboe(this.connection)
.done(callback);
} else {
this.connection.on('data', function(data){
_this._parseResponse(data.toString()).forEach(callback);
});
}
};
/**
@ -101,6 +109,63 @@ IpcProvider.prototype.addDefaultEvents = function(){
};
/**
Will parse the response and make an array out of it.
NOTE, this exists for backwards compatibility reasons.
@method _parseResponse
@param {String} data
*/
IpcProvider.prototype._parseResponse = function(data) {
var _this = this,
returnValues = [];
// DE-CHUNKER
var dechunkedData = data
.replace(/\}[\n\r]?\{/g,'}|--|{') // }{
.replace(/\}\][\n\r]?\[\{/g,'}]|--|[{') // }][{
.replace(/\}[\n\r]?\[\{/g,'}|--|[{') // }[{
.replace(/\}\][\n\r]?\{/g,'}]|--|{') // }]{
.split('|--|');
dechunkedData.forEach(function(data){
// prepend the last chunk
if(_this.lastChunk)
data = _this.lastChunk + data;
var result = null;
try {
result = JSON.parse(data);
} catch(e) {
_this.lastChunk = data;
// start timeout to cancel all requests
clearTimeout(_this.lastChunkTimeout);
_this.lastChunkTimeout = setTimeout(function(){
_this._timeout();
throw errors.InvalidResponse(data);
}, 1000 * 15);
return;
}
// cancel timeout and set chunk to null
clearTimeout(_this.lastChunkTimeout);
_this.lastChunk = null;
if(result)
returnValues.push(result);
});
return returnValues;
};
/**
Get the adds a callback to the responseCallbacks object,
which will be called if a response matching the response Id will arrive.